1052209540 has 48 divisors (see below), whose sum is σ = 2280801600. Its totient is φ = 407544192.

The previous prime is 1052209519. The next prime is 1052209549. The reversal of 1052209540 is 459022501.

It is a super-2 number, since 2×1052209540² = 2214289832134023200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1052209499 and 1052209508.

It is not an unprimeable number, because it can be changed into a prime (1052209549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72406 + ... + 85714.

It is an arithmetic number, because the mean of its divisors is an integer number (47516700).

Almost surely, 2^1052209540 is an apocalyptic number.

1052209540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1052209540 is an abundant number, since it is smaller than the sum of its proper divisors (1228592060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1052209540 is a wasteful number, since it uses less digits than its factorization.

1052209540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13444 (or 13442 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1052209540 is about 32437.7795171001. The cubic root of 1052209540 is about 1017.1087996627.

The spelling of 1052209540 in words is "one billion, fifty-two million, two hundred nine thousand, five hundred forty".